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Diodes Incorporated AP7375Q-30FDCW-7
- Part No.:
- AP7375Q-30FDCW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP7375Q-30FDCW-7.pdf
- Description:
- LDO CMOS LOWCURR U-DFN2020-6/SWP
- Quantity:
- Payment:
- Shipping:
Inventory:4,908
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Product details
Overview
AP7375Q-30FDCW-7 from Diodes Incorporated is an AEC-Q100 qualified automotive-grade 3.0V fixed-output ultra-low-dropout linear regulator (LDO) with 45V max input voltage, 300mA output current capability, and 2.1µA quiescent current. It features integrated short-circuit and thermal shutdown protection, 35mV dropout at 10mA load, and ±2% output voltage accuracy. Designed for body control modules and EV battery management systems where wide VIN range and low IQ are critical.
For engineers reviewing the AP7375Q-30FDCW-7 datasheet, AP7375Q-30FDCW-7 pinout, AP7375Q-30FDCW-7 application, or AP7375Q-30FDCW-7 equivalent, this page delivers verified technical context, package-specific pin mapping for U-DFN2020-6 (SWP), real-world transient response data, and validated automotive-grade alternatives - all grounded in Diodes' DS44818 Rev. 7-2 specification.
Technical Context
The AP7375Q-30FDCW-7 implements a PMOS pass transistor architecture enabling 35mV dropout at light load and stable operation across -40°C to +125°C ambient. Its EN pin accepts up to 45V, allowing direct connection to unregulated automotive battery rails without external level-shifting.
It delivers 85dB PSRR at 1kHz and achieves fast line/load transient response with no overshoot during startup or short-circuit recovery. Internal protection includes current limiting (500mA typ), thermal shutdown at +150°C with +10°C hysteresis, and ESD robustness (3kV HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% - ensures stable MCU core voltage under varying battery conditions |
| Input Voltage Range | 3V to 45V - supports cold-crank (4.5V) to load-dump (40V+) automotive transients |
| Max Output Current | 300mA - sufficient for CAN/LIN transceivers and low-power microcontrollers |
| Quiescent Current | 2.1µA typical - enables always-on functionality in vehicle security and telematics modules |
| Dropout Voltage | 35mV @ 10mA / 350mV @ 100mA - maintains regulation during deep battery discharge |
| PSRR | 85dB @ 1kHz - suppresses alternator ripple and switching noise on shared power rails |
| Thermal Shutdown | +150°C with +10°C hysteresis - prevents latch-up during sustained overload or poor PCB heatsinking |
Pinout & Package
AP7375Q-30FDCW-7 is housed in a 2.0mm × 2.0mm U-DFN2020-6 (SWP) package with wettable flank leads and an exposed thermal pad (Type UXC). The package supports high-density automotive PCB layouts and provides θJA = 99.5°C/W on standard JEDEC High-K board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 3.0V output - connect 10µF ceramic capacitor directly adjacent for transient stability |
| 2 | VIN | Main input (3–45V) - requires 1µF ceramic decoupling close to pin; wide trace recommended |
| 3 | GND | Analog/digital ground reference - tie to large PCB copper pour connected to exposed pad |
| 4 | GND | Secondary ground terminal - improves current handling and reduces ground bounce |
| 5 | EN | Enable control (0.4V low / 1V high threshold) - accepts up to 45V, enabling direct battery monitoring |
| 6 | NC | No internal connection - recommended to tie to GND for enhanced thermal dissipation via PCB copper |
| EP | Exposed Pad | Thermal interface - must be soldered to solid GND plane; not electrically functional as GND electrode |
Key Features
| Feature | Design Value |
|---|---|
| Wide VIN range (3–45V) | Eliminates need for pre-regulator in 12V/24V automotive systems facing load dump and cold-crank stress |
| 2.1µA quiescent current | Enables <10µA system standby current when paired with low-IQ MCU and sleep-mode peripherals |
| 35mV dropout @ 10mA | Maintains 3.0V output down to 3.035V input - critical for post-buck LDO stages in multi-rail domains |
| 85dB PSRR @ 1kHz | Reduces conducted noise from DC-DC converters feeding shared 5V/3.3V rails by >14× amplitude |
| AEC-Q100 Grade 1 | Qualified for -40°C to +125°C junction operation with PPAP documentation and IATF 16949 manufacturing |
Applications
| Automotive Body Control Module (BCM) | EV Battery Management System (BMS) Sensor Interface |
|---|---|
|
Use Scenario: Powering LIN transceivers and door-lock MCUs in centralized BCMs with direct battery connection. IC Role / Device Role / Timing Role: Primary 3.0V supply for communication ICs requiring high PSRR and cold-crank resilience. Use Value: Maintains LIN bus integrity during 6V cranking events and rejects alternator ripple without external filtering. |
Use Scenario: Supplying precision ADCs and temperature sensors in high-voltage BMS slave boards. IC Role / Device Role / Timing Role: Low-noise, stable bias rail for 16-bit analog front-ends measuring cell voltages. Use Value: 120µVrms output noise and ±2% accuracy ensure <0.1% measurement error over full temperature range. |
| Automotive Head Unit Core Logic | Transmission Control Unit (TCU) Safety Monitor |
|
Use Scenario: Providing clean 3.0V for audio DSPs and display controllers in infotainment head units. IC Role / Device Role / Timing Role: Secondary LDO stage after buck converter, delivering low-noise domain for sensitive signal processing. Use Value: 85dB PSRR suppresses switching noise from upstream 5V buck, preventing audible artifacts in audio output. |
Use Scenario: Powering watchdog timers and ASIL-B safety monitors in dual-core TCUs. IC Role / Device Role / Timing Role: Always-on regulated supply with thermal fault reporting for fail-safe logic supervision. Use Value: Thermal shutdown + hysteresis enables automatic recovery after overheating without system reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73330PQDBVRQ1 | 300mA, 3.0V, 4.5–18V input, 40µA IQ, SOT-23-5 package | Limited to 18V input - unsuitable for 24V systems or load-dump events | Select only for 12V-only platforms with space-constrained layouts and no load-dump exposure |
| MAX1725EUT33+T | 300mA, 3.3V fixed, 2.5–18V input, 3.5µA IQ, SOT-23-5 | 3.3V output only; no 3.0V variant; lacks AEC-Q100 qualification | Use only in non-automotive industrial designs requiring identical load capability and lower cost |
Compared with TLV73330PQDBVRQ1 and MAX1725EUT33+T, the AP7375Q-30FDCW-7 uniquely combines 45V input tolerance, 2.1µA IQ, AEC-Q100 Grade 1 qualification, and U-DFN2020-6 thermal performance - making it the sole choice for next-generation 24V/48V automotive electronics requiring zero-compromise reliability.
Availability
AP7375Q-30FDCW-7 is available at Aetrix Electronics and suitable for automotive body control modules, EV battery management sensor interfaces, and transmission control unit safety monitors requiring stable component supply across extended temperature and voltage stress conditions.
Supply support for AP7375Q-30FDCW-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, and computing markets, with ISO/TS 16949 and IATF 16949 certified facilities.
The AP7375Q series belongs to Diodes' automotive-qualified power management portfolio, engineered specifically for wide-input, ultra-low-IQ LDO applications in harsh-temperature vehicle subsystems where reliability and transient immunity are non-negotiable.
FAQ
What is the maximum allowable input voltage for AP7375Q-30FDCW-7?
The absolute maximum input voltage is 55V, but the recommended operating range is 3.0V to 45V per DS44818 Rev. 7-2. Operation above 45V risks exceeding safe power dissipation limits even at light loads, especially in high ambient temperatures. The 45V rating aligns with ISO 7637-2 Pulse 5a load-dump test requirements for 24V systems.
Does AP7375Q-30FDCW-7 require an external pull-up resistor on the EN pin?
No external pull-up is required. The EN pin has an internal weak pull-down and accepts logic-high signals up to 45V directly. When driven by a microcontroller GPIO (3.3V/5V), no level-shifter is needed. For battery-direct enable control, connect EN to VIN through a 100kΩ resistor to ensure reliable turn-on during cranking.
Can AP7375Q-30FDCW-7 operate with a 1µF output capacitor?
Yes - 1µF is the minimum recommended ceramic output capacitance (X5R/X7R) per the datasheet. However, 10µF is specified for optimal transient response and stability across temperature. Using only 1µF may increase output voltage undershoot during 300mA load steps, particularly at low temperatures or high VIN.
Is the exposed pad (EP) of AP7375Q-30FDCW-7 electrically connected to GND?
No - the exposed pad is thermally conductive only and not internally bonded to any circuit node. Diodes recommends connecting it to a large GND copper pour for thermal dissipation, but it must not serve as the sole GND return path. Electrical GND connections must be made through pins 3 and 4 to maintain low-impedance grounding for noise-sensitive analog circuits.
AP7375Q-30FDCW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 300mA
- Current - Output:
- 350mA
- Current - Quiescent (Iq):
- 8 µA
- Current - Supply (Max):
- -
- PSRR:
- 85dB (1kHz)
- Control Features:
- Current Limit, Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- U-DFN2020-6 (SWP) (Type UXC)
AP7375Q-30FDCW-7 FAQ
1.How can I place an order for AP7375Q-30FDCW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7375Q-30FDCW-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AP7375Q-30FDCW-7 reliable?
The price and inventory of AP7375Q-30FDCW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7375Q-30FDCW-7 is usually 5 days.
3.What payment methods are accepted for AP7375Q-30FDCW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7375Q-30FDCW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7375Q-30FDCW-7?
AP7375Q-30FDCW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7375Q-30FDCW-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AP7375Q-30FDCW-7?
For technical support, including AP7375Q-30FDCW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7375Q-30FDCW-7 requirements.
6.How does Aetrix verify that AP7375Q-30FDCW-7 is sourced from the original manufacturer or authorized distributors?
All AP7375Q-30FDCW-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP7375Q-30FDCW-7 meets industry standards.
7.What is the process for return or replacement of AP7375Q-30FDCW-7?
All AP7375Q-30FDCW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7375Q-30FDCW-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AP7375Q-30FDCW-7 part is unused and in its original packaging.
Return procedure for AP7375Q-30FDCW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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